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IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century


IASS Symposium 2016

SESSION: Deployable Structures

Two Novel Geometrical Solutions to Fold the Continuous Textile Membrane to the Outer Perimeter of a Spoked-wheel Roof

< Table of Contents for Deployable Structures
  • Proceedings Name: IASS 2016 Tokyo Symposium: Spatial Structures in the 21st Century
  • ISSN: (Electronic Version) 2518-6582
  • Session: Deployable Structures
  • Pages: 10
  • Title: Two Novel Geometrical Solutions to Fold the Continuous Textile Membrane to the Outer Perimeter of a Spoked-wheel Roof
  • Author(s): Motoi Masubuchi
  • Keywords: membrane structures, retractable roof, spoked-wheel structure, adaptive structure, stadium roof, web-database
Abstract
Most of the membrane retractable roofs with spoked-wheel structure store the folded membrane in the center, when the roof is open. A bundle of folded membrane remains in the center of the roof, which is not favorable, for instance, for broadcasting; the bundle casts a shadow in the playing field. However, if the textile membrane can be folded to the perimeter of the roof, the problem would be solved. There will be no shadows on the field. Moreover, this creates a free opening. Any proposed solution has to deal with a geometrical issue, as well as, a structural question concerning prestressing of the membrane. Amongst several approaches to overcome these problems, two novel practical geometrical solutions will be introduced. Furthermore, the possibility of non-circular form in plan, which is demanded in real projects such as a football stadium, will be discussed. Finally one design proposal will be presented.

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